Umbrella shaft having nine tubes



FIG. 1 is a perspective view of an umbrella shaft having nine tubes showing my new design.

FIG. 2 is a front plan view thereof.

FIG. 3 is a rear plan view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a left side plan view thereof.

FIG. 7 is a right side plan view thereof; and,

FIG. 8 is an enlarged top view of the concentric segments of the shaft shown separately for clarity of illustration. 

The ornamental design for an umbrella shaft having nine tubes, as shown and described. 